Folding hollow body



(No Model.) 3 Sheets-Sheet 1.

E. W. ROBERTS;

FOLDING HOLLOW BODY.

NO. 490,680 Patented Jan. 31, 1893.

(No Model.) 7 '3 Sheets- Sheet 2.

4 E. W. ROBERTS.

' FOLDING HOLLOW BODY.-

No. 490,680. Patented Jan. 31, 1893.

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3 sheets sheet 3.

m .8 M Em u 0 Rm ..G m w B0 n 1. 0 M 0 m Patented Jan, 31, 1893.

Wines May STATES PATENT OFFICE.

ELLl/VOOD WALTER ROBERTS, OF BROOKLYN,'NE\V YORK.

FOLDING HoLLow'BooY.

SPECIFICATION forming part of Letters Patent No. 490,680, dated January31, 1893.

Application filed February 5 1892. Serial No. 420,419. (No model.)

T at whom it may concern.-

Be it known that I, ELLWOOD WALTER ROBERTS, a citizen of the UnitedStates, and a resident of Brooklyn, Kings county, State of New York,have invented a new and useful Improvement in Folding Hollow Bodies, ofwhich the following is a specification.

My invention relates to an improvement in folding hollow bodies, and theobject is, primarily, to improve the construction of the coin-receptacle provided with devices in its interior for preventing theegress of coins, described and claimed by me in Letters Patent of theUnited States No. 465,6et9, issued to me on the 22d day of December,1891; and, secondarily, to provide a receptacle having such devices inits interior which may be folded for the purposes of packing and whiclwill be cheap and easy to construct.

Now, I have discovered, that by constructing receptacles of the formhereinafter described, and in the manner indicated, out of one or morepieces of cardboard or other suitable material, or out of separate thinpieces of any other material cut in the precise shapes indicated, and byfolding, or if made in separate pieces, by connecting with flexiblestrips, and attaching the folded or connected parts in the mannerindicated, a receptacle will be formed which may be packed fiat when notin use, and distended whenever it is to be used for receiving coins fromtime to time.

The invention will be best understood with reference to the accompanyingthree sheets of drawings, forming a part of this specification, in whichFigures 1, 2, 3 and 4 show the material cut to form a three sidedpyramid, a four sided pyramid, a prism or wedge and a cube respectively.Figs. 5, 6,7 and 8 show the completed receptacles, and Figs. 9, 10 andll show a three sided pyramidal receptacle provided with the interiorcoin-opening-protecting devices referred to in said patent, madepursuant to the hereindescribed method.

Similar letters refer to similar parts in Figs. 1 and 5. In theremaining views the similar parts are designated by the same letters.

When, for example, an ordinary three sided pyramid of card board orpaper, is opened and laid fiat, a variety of groupings of the base andsides may be formed. Thus for instance the various faces may assume theposition shown in Fig. 1, the base being at= tached to any one of thethree sides, as for example, to the side a a a or the sides may begrouped radially around the base, or one side may be grouped on one sideof the base and one on another, and the third side may be attached toeither one of the said sides. The same is true when any other form ofreceptacle is opened up. If now, a crease or fold be made on the line ao the perpendicular of the face a a a or the face of any other side onwhich the base will abut when the receptacle is put together, and thesame be extended on the line a c of the base, which is the perpendicularof the base on the side abutting against the side already creased,

and inclined auxiliary folds a a and a 01.

from the perpendicular to the corners of the base be provided thepyramid when put together will assume the form shown in Fig. 5, and,provided that an air hole be provided at a convenient point, the line aa may be pressed in at the point 0 by the finger and the material willbend in on the dotted lines a a and a a and the point a will be thrownoutward by reason of the fact that the diagonal creases a a and a a foldoutward and the pyramid will assume the folded form shown in Fig 11. I

Where it is desired to provide the pyramid with interior devices forprotecting the coin opening, the card-board or material is cut in theprecise form shown in Fig. 9, and bent upon the bottom lines a a a a a aof the base a a a and the lines a c and a c and the two interior lines aa a a of the face a a a so that a a a and a a, a represent two of thesides of the pyramid and a a a the base, while for the purposes ofmaking an opening for receiving the coins, the third side a a a of thecompleted Fig. 10, is made as shown in two parts A a a and 01. A a Wherea simple opening in any face is used without interior protectingdevices, the parts a A a are dispensed with and the third side a A01.

continued out to be of the same dimensions the pyramid is gluedtogether, form the indentations upon the flap protecting thecoinopening, while a A a is a strengthening or underlying face which mayor may not be used, whereby w and 10 form respectively the inher andouter walls of the coin opening V on the completed pyramid. The pastingsurfaces are indicated by the capital letters and dotted lines on Fig.9. If now, the piece of card board so cut and bent be glued together bypasting, the surfaces A A against the surfaces A A, and the surfaces A Aagainst the surfaces A A, and the pasting the surface B within and uponthe surface B, a pyramid is formed provided with interior devices forprotecting the coin opening of the general character shown in Fig. 10.

Vhen the pyramid is pressed inward at the point 0 on the lines (t c, c aand a a c, Fig. 10, the pyramid will be found to fold up flat, the pointCL projecting outward at the left as shown in Fig. 11, and the twopoints (t taking up a position immediately behind each other. At onepoint of the face a a a the material is cut away as shown so as to leavea small opening 1) when the pyramid is put together to permit the airbeing expelled and preventing it from bursting on being folded.

To open the pyramid when folded, the pyramid is grasped by the top, atthe point a, and the point a pushed inward so that the face a a dbecomes flat; the triangular surface a a a will thereupon also becomeflat and serve as the base of the pyramid. The pyramid may beconstructed of cardboard, stilf paper or other suitable material, or itmay be made of thin pieces of wood or metal, each of which is cut in theparticular form shown by the lines in Fig. 11 and connected together bystrips of flexible material. The form and number of the teeth 20 to willvary from time to time as may be found convenient.

Any desired grouping of the sides of the pyramid when opened, may beemployed,provided that when put together, the fold through the base iscontinuous with the central vertical fold passing through any one side.

The receptacle is not necessarily limited to the particular use aboveindicated, but may be used for any purpose for which it may be foundadaptable, and if desired, it need not necessarily, be used as areceptacle. Th us for example it may be used asa folding form,fordisplaying a calendar, interest tables, or other similarprinted matter.In fact it may be used for any purpose for which a knock down hollowbody of the particular shapes indicated can be used, or may beavailable.

The method of folding hereinabove described may be applied to any formof receptacle, the base of which has not more than four sides andparticularly to any one of the forms shown in Figs. 6, 7 and 8, byfolding the same in the manner indicated by the dotted lines in thosefigures and in Figs. 3, 4 and 5, which show the forms opened up. a 0. a

a represent in each case the base and c c the governing fold which is ineach case a straight line passing through the base and in any foursidedbase there must be folds in each side adjacent to those sides of thebase through which the governing fold passes. In the case of a cube, ora truncated form, this line is extended upward through the top of thehollow body and in a plane parallel with line made by it through thebase, so making double folds at both top and bottom. In this case onefold will be formed at the top on each of the sides, through which thecontinuation of the governing line passes as will clearly appear byreference to the cube shaped receptacle shown in Fig. 8.

It will be obvious that the diverging diagonal folds a a and a a in theside a a (1. Fig. 9, are an essential part of the construction, for ifthe same be absent the proper folding of the side containing thevertical fold, cannot be effected.

The diagonal folding lines in the side which folds in any form, may betransposed to the base of the particular form employed, and thereuponthe point a will take a position in the base, and consequently fold outwhen the receptacle is folded, while the side containing the verticalfold will fold inward, so reversing the method of folding. The same willbe the case in any form of receptacle where two or more folds have to beemployed.

I claim as my invention:

1. As a new article of manufacture a sealed hollow body. of any one ofthe forms described provided with a suitable air opening. having agoverning fold on the perpendicular of any one side, continued. in thesame vertical plane. through the abutting side or sides, and auxiliaryfolds in either of said sides. each running from the perpendicular orthe continuation thereof, to the corners of the nearest abutting side,substantially as described, whereby the hollow body may be folded flat.

2. As a new article of manufacture-a sealed hollow body of any one ofthe shapes described provided with a suitable air opening composed of asingle piece of material, cut substantially as described and puttogether in the manner indicated, having a governing fold on theperpendicular of any one side, continued in the same vertical plane.through the abutting side or sides, and auxiliary folds in either ofsaid sides. each running from the perpendicular or the continuationthereof to the corners of the nearest abutting side, substantially asdescribed whereby the hollow body may be folded fiat.

3. As a new article of manufacture a sealed hollow body of any one ofthe forms described, provided with a suitable air opening. having agoverning fold on the perpendicular of any one side, continued in thesame vertical plane. through the abutting side or sides. and auxiliaryfolds in either of said sides each running from the perpendicular or thecontinnation thereof to the corners of the nearence of two witnesses,this 30th dayfof J anuest abutting side, substantially as described,ary, 1892. and/provided with one or more openings in the side Walls forthe reception of articles, the ELLWOOD WALTER ROBERTS 5 whole beingarranged to fold flat. Witnesses: a

In testimony that I claim the foregoing as HARRY G. LAWTON,

my invention I have signed my name, in pres- J. D. BROWN.

